Copyright is about two things under Canadian law - money and morality.
If you hold copyright in a work then you expect not only to be compensated for usage of that work, but also have the right to stop anyone from using the work inappropriately, or changing it in any way.
On the other hand, if you would like to use a copyrighted work for your own creative purposes, by sampling music, a photograph, a book etc, then you might say that changes to the law to allow you to do that , presumably for free, would be a good way to "foster innovation and creativity".
Copyright law is there to protect the rights of the original creator of a work, as it should be, not someone who uses other peoples' work in their own creations.
I think the question is academic, at best

We need clearer definition of what can and can't be sampled. What constitutes a substantial innovation? What freedoms do people have when creating a work which utilizes someone else's work.

Fair use also becomes a hot topic that needs clearer definition... By allowing unlicensed fair use clauses to exist, and let content creators build off other people's work, we will foster innovation and creativity. Setting clear and strict limits on what constitutes innovation and what is plagiarism (How much was copied verbatim, how much was modified, and how much was new material) in fair use not requiring a license.

by writing these limitations in clear plain language that can be understood by 10 year old children, we would improve Canadians' understanding of the laws, so that we can innovate within the rules and guidelines of the law.

The best changes are those which protect me, the consumer. What I read appears as engineered consumerism at best and... well I'll avoid the privatized Orwellian arguments for others... as a consumer I will not purchase a device which either police or lock me into someone's business model. Protecting consumers with fair-use, open-standards, and interoperability are how you'll foster innovation and creativity because these industries, entertainment & recording industry most notably, are as disposable as the income I spend there. Which is getting scarce.

Has no one noticed amazon and kindle?

This is kind of long video from Duke univerity about copyright and sampling in the US and how it has expanded the industry...along with the legal side of it...keep in mind that this is in the US but should be thought about how any restrictions would impact our laws.

http://www.youtube.com/watch?v=W_eULq_aP60#t=2m57s

Great access to digital media is a great catalyst for innovation and creativity. Recently, I have registered a corporation for personal business, and for our first (zero) year, I decided to fill corporate taxes on my own. When filling out corresponding government forms, I got stuck on a particular section and turned to Google and online searches for some help. A reference came up from a book that is partially available through Google. The reference gave me an answer right away to my question and I finished the tax forms fairly easily. At the same time, I really liked other information available in this book and I added it to my Amazon shopping queue, to order in my next batch. Without access to online media, in this case through Google, I would have spent many more hours filling the forms instead of working on my business and creation of IP, and I would have never found out how useful this tax book was to my purpose.

However, I am afraid that such "easy access" scenarios will be disabled if special-interest groups get their way through this copyright reform, thereby hindering the speed of doing business.